Speeches, addresses, etc 33 Foreign relations -- 28 Courses -- 24 Closing ceremony 18 Economic conditions 18 Politics and government 18 Foreign relations 15 more ... Global economy 13 Communication 12 Farewells 12 Study and teaching 12 Budget -- 11 Diplomatic training 11 Terrorism 10 Etiquette 9 History 9 Terrorism -- 8 Crisis management 7 Foreign policy 7 Business communication 6 Conflict management 6 Diplomacy 6 Diplomacy -- 6 International diplomats 6 International relations 6 International trade 6 Management 6 Nuclear weapons 6 Opening Ceremony 6 Communication -- 5 less ...